. ♪ >> president obama will travel to newtown this afternoon to console the victim's families and to attend a community vigil. this headlines sums up where we are nearly 48 hours after the shooting, wrenching detailing but few answers. we want to start with nbc correspondent pete williams about what we are learning about the investigation. do we know more about why it happened? >> i don't think we can ever get a satisfactory answer, there is no satisfactory answer to such a heinous act. there's some evidence at his mother's house, they have a commuter there and they're analyzing that to see what they can get out of it. >> what was the scenario? >> the scenario, it all starts friday morning when he takes his mother's gun, she had purchased them legally, this is a woman who grew up in rural new hampshire, was comfortable can guns, liked them. he kills her, takes three of those guns to the school, in her car, forces his way in by shattering the window. they had a buzzer system and he forced his way in. the principal tried to stop him and he concentrated his firepower on these two classrooms with

. ♪ >> president obama will travel to newtown this afternoon to console victims' families and attend a community vigil. "the washington post" headline this morning sums up where we are nearly 48 hours after the shooting. wrenching details but few answers. that's where we want to start this special hour this morning with pete williams on what more we are learning about this investigation. and, pete, do we know about why it happened? >> no. i don't think we do, and i think -- of course, i don't think we can ever get a satisfactory answer. there is no satisfactory answer to this, such a monstrous act. there is some hope that evidence in the house where his mother was killed, where he killed his mother, they believe, will help illuminate what was in his mind. he had a computer there, and they are analyzing that to see what they can get out of it. >> what can you tell us about what happened if what was the scenario? >> well, it all starts friday morning when he takes his mother's guns. she had purchased them legally. this is a woman who grew up in rural new hampshire, comfortable with guns,

shooting at sandy hook elementary in newtown, connecticut and the debate over gun control has been revived. here with us exclusively this morning, the man at the center of that debate, the ceo and executive vice president of the nra, wayne lapierre. answering questions for the first time since this shooting. i want to get right to it. welcome back to the program. >> thank you, david. >> you promised in the wake of this massacre 26 people murdered that the nra would, quote, offer meaningful contributions to help make sure this never happens again. if we boil down your appearance before the news media on friday, this was your message. >> the only thing that stops a bad guy with a gun is a good guy with a gun. >> you proposed armed guards in school. we'll talk about that in some detail in a moment. you confronted the news media, you blamed hollywood and the gaming industry but never once did you concede that guns could actually be part of the problem. is that a meaningful contribution, mr. lapierre, or a dodge? >> david, i said what i honestly thought and what hundreds of millions of

things, you didn't mention after newtown, although i know you're thinking about it, new gun regulations. mayor bloomberg of new york told me couple of weeks ago on this program, that ought to be your number one agenda item. you know how hard this is. do you have the stomach for the political fight for new gun control laws? >> you know, david, i think anybody who was up in newtown, who talked to the parents, who talked to the families, understands that something fundamental in america has to change. and all of us have to do some soul-searching, including me as president. that we allow a situation in which 20 precious, small children are getting gunned down in a classroom. and i've been very clear that an assault rifle ban, banning these high-capacity clips, background checks, that they're a set of issues that i have historically supported and will continue to support. >> can you get it done? >> so the question is, are we going to be able to have a national conversation and move something through congress? i'd like to get it done in the first year. i will put forward a very specific propo

shooting at sandy hook elementary in newtown, connecticut and the debate over gun control has been revived. here with us exclusively this morning, the man at the ten ter of that debate, the ceo and executive vice president of the nra, wayne lapierre. i want to get right to it. >> the only thing that stops a bad guy with a gun is a good guy with a gun. >> you proposed armed guards in school. we'll talk about that in some detail in a moment. you confronted the news media, you blamed hollywood and the gaming industry but never once did you concede that guns could actually be part of the problem. is that meaningful contribution, mr. lapierre, or a dodge? >> david, i said what i honestly thought and what hundreds of millions of people all over this country will believe will actually make a difference. i can't imagine a more horrible tragedy. we all have 5-year-olds in our family in some way. we all put ourselves in that situation and have tears in our eyes. the nra, we have 11,000 police training instructors, 80,000 police families, we're 4 million members and we set down and we said wh